Carrollite
Diffraction data computed using the structure from the paper listed below, 
along with the cell parameters refined from the powder pattern of R050089
      Williamson D P, Grimes N W
      Journal of Physics D: Applied Physics 7 (1974) 1-6
      An X-ray diffraction investigation of sulphide spinels

      CELL PARAMETERS:   9.4717  9.4717  9.4717   90.000   90.000   90.000
      ALTERNATE SETTING FOR SPACE GROUP: Fd3m      

           ATOM        X         Y         Z     OCCUPANCY  ISO(B)
            Cu     0.12500   0.12500   0.12500     1.000     0.400
            Co     0.50000   0.50000   0.50000     1.000     0.400
            S      0.26300   0.26300   0.26300     1.000     0.400

            X-RAY WAVELENGTH:     1.541838
            BOUNDS ON TWO THETA:    5.0  90.0
            LIMITS IMPOSED ON THE INDICES ARE:  +/-  8 +/-  8 +/-  8
            MAX. ABS. INTENSITY / VOLUME**2:      71.02167930    
            The INTENSITY cut off value is   1.00

               2-THETA      INTENSITY    D-SPACING   H   K   L
                16.21         15.73        5.4685    1   1   1
                26.62         36.64        3.3488    2   2   0
                31.32        100.00        2.8558    3   1   1
                38.00         41.05        2.3679    4   0   0
                47.00         11.88        1.9334    4   2   2
                50.04          3.29        1.8228    3   3   3
                50.04         46.75        1.8228    5   1   1
                54.83         76.35        1.6744    4   4   0
                57.57          2.02        1.6010    5   3   1
                61.96          3.80        1.4976    6   2   0
                64.51         10.94        1.4444    5   3   3
                68.65          6.69        1.3671    4   4   4
                71.08          2.82        1.3263    5   5   1
                75.05          6.89        1.2657    6   4   2
                77.39         10.02        1.2331    5   5   3
                77.39          4.59        1.2331    7   3   1
                81.25          9.63        1.1840    8   0   0
                83.55          1.02        1.1572    7   3   3
                87.36          1.83        1.1163    8   2   2
                87.36          1.74        1.1163    6   6   0
                89.64          6.94        1.0937    7   5   1
                89.64          3.72        1.0937    5   5   5
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.